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Volume control type rotary compressor and freezing circulation device

A technology of rotary compressor and capacity control, which is applied in the direction of rotary piston machines, rotary piston pumps, components of pumping devices for elastic fluids, etc. It can solve the problems of sliding vane groove wear and energy loss, and achieve sliding Small loss, small wear, simple switching effect

Pending Publication Date: 2020-02-25
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing variable capacity compressors often have the sliding friction of the sliding vanes, which will cause energy loss and wear of the sliding vanes.

Method used

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  • Volume control type rotary compressor and freezing circulation device
  • Volume control type rotary compressor and freezing circulation device
  • Volume control type rotary compressor and freezing circulation device

Examples

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Embodiment Construction

[0050] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0051] Implementation status 1:

[0052] figure 1 Shown is a 2-cylinder capacity-controlled rotary compressor 80 and a refrigeration cycle system of an air conditioner connected to the compressor 80 . 2 Cylinder capacity-controlled rotary compressor 80 is mainly composed of a variable-frequency electric motor 4 fixed on the inner periphery of the closed casing 2 and a compressor structure 5 driven by the electric motor 4 with a capacity control function. The bottom of the casing 2 is s...

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Abstract

The invention discloses a volume control type rotary compressor. A compressor structure part which is driven by an electric motor and has a low-pressure gas absorption means and a high-pressure gas discharge means comprises cylinders with compression cavities, two element components connected with the planes on the two sides of the corresponding cylinder correspondingly, slide sheet grooves with holes formed in the compression cavities, slide sheets and slide sheet back cavities, wherein the slide sheets slide between the slide sheet grooves and the two element components, the section of eachslide sheet is in a rectangular shape, and the slide sheet back cavities close the backs of the slide sheets on the slide sheet grooves. A high-pressure groove is formed in one of slide faces of eachslide sheet and the two sides of the corresponding slide sheet groove or slide faces of each slide sheet and the two element components, and a high-low pressure groove connected with the correspondingslide sheet back cavity is formed in the other one of the slide faces of each slide sheet and the two sides of the corresponding slide sheet groove or the slide faces of each slide sheet and the twoelement components. The volume control type rotary compressor has a volume change function, and the sliding loss and abrasion of the slide sheets are small.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a capacity-controlled rotary compressor and a refrigeration cycle device. Background technique [0002] The capacity control of the rotary compressor refers to the technology of switching the effective displacement (refrigeration capacity) of the compressor between 2 to 4 modes by making the slide vane run stationary and release it in a moving state. Combining with the operating speed controlled by the inverter motor, the comfort and energy efficiency (APF) of the air conditioner are taken into account. [0003] In order to expand the application of the technology to air conditioners, it is necessary to improve the reliability of the stationary and stationary release operations of the slide vane. That is, responsiveness in capacity control under high and low pressure changes and elimination of vane sliding losses in capacity control operations require long-term response re...

Claims

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Application Information

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IPC IPC(8): F04C18/356F04C29/00
CPCF04C18/3562F04C29/00
Inventor 小津政雄王玲吴延平
Owner GUANGDONG MEIZHI COMPRESSOR
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